Description : Function of protoxylem? -Biology
Last Answer : answer:
Description : The annular and spirally thickened conducting elements generally develop in the protoxylem when the root or stem is (a) elongating (b) widening (c) differentiating (d) maturing.
Last Answer : (c) differentiating
Description : You are given a fairly old piece of dicot stem and a dicot root. Which of the following anatomical structures will you use to distinguish between the two? (a) Secondary xylem (b) Secondary phloem (c) Protoxylem (d) Cortical cells
Last Answer : (c) Protoxylem
Description : In the dicot root the vascular cambium originates from (a) tissue located below the phloem bundles and a portion of pericycle tissue above protoxylem (b) cortical region (c) parenchyma between endodermis and pericycle (d) intrafascicular and interfascicular tissue in a ring.
Last Answer : (a) tissue located below the phloem bundles and a portion of pericycle tissue above protoxylem
Description : Exarch xylem means a. Protoxylem towards centre b. Protoxylem towards periphery c. Protoxylem is absent d. None of the above
Last Answer : b. Protoxylem towards periphery
Description : Where do you find protoxylem lacuna? How are they formed?
Last Answer : Ans: They are found in the vascular bundles of monocot stem. They are formed due to crushing of protoxylem vessels during the course of development.